PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-15:42:50
G02     17.4           65.8                8.2 +/-    0.33       8.9 +/-    0.33  0.060 / 0.080
G05     155.9          50.5               12.4 +/-    1.47      15.5 +/-    1.47  0.060 / 0.080
G06     47.9           23.5                8.0 +/-    0.41      16.2 +/-    0.41  0.190 / 0.340
G12     226.6          78.7               11.7 +/-    0.80      11.9 +/-    0.80  0.240 / 0.350
G19     91.1           14.6                7.8 +/-    1.33      19.5 +/-    1.33  0.030 / 0.030
G24     216.7          10.7               10.8 +/-    1.06      29.6 +/-    1.06  0.020 / 0.030
G25     309.7          44.0                9.8 +/-    1.50      13.5 +/-    1.50  0.120 / 0.220
G29     298.7          19.6                9.2 +/-    1.78      20.5 +/-    1.78  0.130 / 0.220